Siphon with manometric discharge control



Oct. 25, 1960 P. s. SUAREZ 2,957,182

SIPHON wrm MANOMETRIC DISCHARGE CONTROL Filed Oct. 23, 1956 EIEJEH BEEg1- JNVENTOR. PEDRO SANCHEZ SUAREZ United States Patent @fhce PatentedOct. 25, 1960 SIPHON WITH MANOMETRIC DISCHARGE CONTROL Pedro SanchezSuarez, Madrid, Spain, assignor to Dispgssitlvps Industriales S.A.,Avila, Spain, a corporation pain Filed Oct. 23, 1956, Ser. No. 617,850

Claims priority, application Spain Jan. 12, 1956 1 Claim. (Cl. 4-42) Thepresent invention relates to siphons with manometric discharge control,the essential aim of which is to effect the rapid discharge of liquid,contained in a water closet or tank, intermittently or at Theimprovements consist of the disposition of elements which perfect thedischarge of the liquid in such a way, that its functioning is renderedmore rapid, more effective and more economical than hitherto known inhygienic containers and other uses.

The manometric control apparatus consists of the following essentialelements:

A pneumatic stopper with a control, whose function is to produce therapid discharge of the liquid of the tank at the will of the user of theapparatus, or intermittently.

A discharge interrupter, consisting of a pressure equalising tube whichprevents the above named pneumatic stopper being left without liquid ontermination of the discharge, thus assuring normal functioning of thesubsequent discharge.

A bed evacuator, for the purpose of reducing to the minimum the liquidremaining at the bottom when the discharge is terminated, so as toutilize the volume of the container to the maximum extent.

The construction material, as well as the geometrical form of thesection of the double or multiple siphon and of the apparatus can be ofany kind desired.

In order to facilitate the description and explain the function of thesenew appliances, apparatus in accordance with the invention will now bedescribed, by way of example, with reference to the accompanyingdiagrammatic drawing, wherein the Fig. 1 is a sectional elevation, andFig. 2 is a side view partly in section of the apparatus.

Referring to the drawing, the apparatus which forms the object of theinvention is placed inside a tank or water closet which is open to theatmosphere. The water is admitted into the tank by means of a valve 11operated by a handle outside the tank and is discharged through theoutlet pipe 12. The valve 11 is closed by means of a float 13 when thewater in the tank reaches a height designated by the dash line 14. Thepneumatic stopper and control comprises an upwardly positioned U-shapedtube AB, the arm A is connected with a siphon branch 2 by means of theopening Y, and the other arm B is connected with the siphon branch 4 bymeans of a small open tube X and with a small reservoir D by means ofopening F. Reservoir D is connected by means of a rubber tubing E to arubber hand bulb P.

The discharge breaker consists of the tube RR, curved in its upper part,which joins branch 1 through an opening n and the water closet 10through its lower open end m to the upper part of branches 3 and 4 ofthe siphon through opening r.

A trap L connects branches 2 and 3, and this trap is evacuated by asimple siphon 8-8 of very small section placed between branches 3 and 4of the siphon.

The general functioning of these new appliances, connected to the siphonis as follows:

The water feeding the container 10 enters by the lower part of branch 1of the siphon and let it be assumed that, owing to the previousdischarge, liquid has remained in the small reservoir or tank D and inthe U-tube AB of the pneumatic stopper, and the trap L which extendsapproximately to the edge of branches 2 and 3.

The Water which enters branch 1, as shown by the arrow 15 in Fig. 1,will rise and flow over the upper edge of the partition 16 separatingbranches 1 and 2, but because of the trap of water L, it will not beable to enter freely, because an air-chamber, or an air cushion, will beslowly compressed and will retard the entrance of the water into thebranches of the siphon. Meanwhile the water will continue to enter thecontainer 10, and as a result, the level of water in it and in branch 3will continue to rise; also, the compressed air of the air cushionentering tube A through opening Y, will make the water rise in tube B.As water continues entering the container 10, a critical moment willcome, when the level in branch 3 reaches the upper edge of the partitionseparating it from branch '4, and simultaneously the level in tube Awill descend to the lowest point; then the compressed air of the aircushion will be expelled through the end of tube X to branch 4, primingthe siphon which discharges rapidly through branch 4. Before the end ofthe discharge the priming of the siphon is cut out because the dischargebreaker constituted by the tube R--R forming a pressure equalizertransmits atmospheric pressure from the then uncovered port n to thecommon upper end of the branches or arms 3 and 4, which prevents thewater in the tubular connection AB in the container D from dischargingthrough X when the upper ends of the branches 1 and 2 have emptied. Atthe same time, there remains a water seal in the trap L between thebranches or arms 2 and 3, which seal empties partly through the simplesiphon shown at S-S. However, the opening into said simple siphon lyingsomewhat higher than the lower edge of the partition between saidbranches or arms 2 and 3, said simple siphon ceases operating as soon asthe water seal has sunk to its minimum level underneath said lower edgeas illustrated in Fig. 1.

The operation disclosed up to now is that of an intermitent flushing,since the water continues entering the container 10 so that it willafter the discharge rise again inside the container and close theopening 71. Following this, the operations begin over again the mannerdisclosed: there is formed in the upper ends of the arms of branches 1and 2, an air cushion which no longer communicates with the remainder ofthe double siphon as soon as the water passing over the partitionseparating 1 and 2, has filled the branch or arm 2 up to the upper edgeof said partition. The air cushion enclosed above the upper edge of saidpartition inside the branches 1 and 2 is compressed until enough energyis stored therein upon further rising of the water level, so that asdescribed hereinabove, a pressure is exerted through the comparativelynarrow tube AB. As precedingly, the water as expelled out of AB, so asto produce an outlet for the air in the air cushion between the twofirst branches 1 and 2 and the upper end of the branch 4. The pressureof the air cushion being thus removed, the water can again flow throughthe siphon until the water level in the container 10, which fillsobviously in a comparatively slow manner, drops again underneath thelevel of the port n. The other, controlled manner of operating thedischarge consists in compressing the bulb P, so as to urge air throughthe pipe E into the container D. The latter empties thus through X anddraws along with it the water in the pipe AB, so that communication isprovided as in the preceding case through said pipe AB, with the upperends of the branches 3 and 4. The pressure of the air cushion being thuscut out, the siphon is primed and the liquid will pass out of thecontainer so that the discharge is obtained as precedingly.

If water is prevented from entering continuously the container, saythrough the agency of the valve 11 and float '13, no discharge isobtained unless the bulb is actuated as disclosed. In all cases,the-discharge through the bulb' P may be repeated Whenever the containeris filled to a level above the upper edge of the partition between thebranches 1 and 2.

Thus it is apparent that my arrangement operates in a dual manner andcomprises merely a double siphon 1, 2, 3, 4 the input end of which liesinside the container and the output opens into the discharge. Thissiphon is provided with a pressure-equalizing port at n in its upwardlydirected input branch 1 and is associated with pressureequalizing meansRR connecting said port n with the lower end of the container, and withthe upper end of the second elementary siphon 3-4 through port r whilean auxiliary single siphon is adapted to empty the excess water in thewater seal at the bottom of 2,3 into the discharge. The gist of theinvention consists in providing said double siphon with an auxiliaryU-shaped pressure releasing pipe connecting the upper ends of theelementary siphons 1, 2 and 3, 4 and with an auxiliary container D alsoopening into the upper end of the branches 3, 4 and adapted to beemptied into same and to draw the air at F out of the end of the pipe ABupon manual application of pressure at P into the pipe E opening intothe auxiliary container D.

It is to be noted that the elements designated by A, B, D and E are noton the same plane with the elements designated 1, 2, 3 and 4, but are toone side thereof as shown in Fig. 2. Also opening F providescommunication between branch B and reservoir D; provides communicationbetween reservoir D and rubber tube B so that knob P is in communicationwith D by means of tube E and opening 6. 7

It will be understood that I have described the invention only inconnection with a preferred embodiment shown in the drawing and that theinvention is not to be 4 restricted to precise details of constructionshown in the drawing, since various changes and modifications may bemade without departing from the scope of the invention or sacrificingall of the many advantages derived from its use.

What I claim is:

In a flushing system, the combination of a container, a siphon carriedtherein and comprising two similar sections, each including an inputascendingchannel, an output descending channel and anupper upwardlyconvex channel connecting said two channels, and an intermediate sectioninterconnecting the lower ends of the output channel of the firstsection with the output channel of the second section respectively, thelower end of the input channel of the first section opening into thecontainer, a discharge channel forming a lower extension for theoutputrchannel of the secondsection, an auxiliary channel in the shapeof an upwardly facing U connecting the upper end of the descendingoutput channel in the first section with the upper convex channel in thesecond section, said auxiliary channel being provided with a port justunderneath last-mentioned convex channel, an auxiliary container fittedbetween the arms of the U- shaped auxiliary channel and opening intosaid auxiliary channel through last-mentioned port, means for blowingair into the bottom of said auxiliary container, a narrow invertedU-shaped tube connecting a point of the input channel of the secondsection slightly above the highest allowed level of the hydraulic jointin the intermediate; section of the siphon when drained with a point ofthe discharge channel, a connecting pipe opening into the main containernear the lower end of the latter and lead ing to the uppermost point ofthe convex channel of the second section and means through which saidconnecting pipe communicates with the input channel of the first sectionat an intermediate point of its height.

References Cited in the file of this patent UNITED STATES PATENTS1,421,531 Moras July 4, 1922 2,120,856 Collison June 14, 1938 2,615,173Pegler Oct. 28, 1952

